diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 31e6363..a3564e4 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -8,16 +8,16 @@ on:
 jobs:
   pr-pull:
     if: contains(github.event.pull_request.labels.*.name, 'pr-pull')
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     permissions:
       contents: write
       pull-requests: write
     steps:
       - name: Set up Homebrew
-        uses: Homebrew/actions/setup-homebrew@master
+        uses: Homebrew/actions/setup-homebrew@main
 
       - name: Set up git
-        uses: Homebrew/actions/git-user-config@master
+        uses: Homebrew/actions/git-user-config@main
 
       - name: Pull bottles
         env:
@@ -26,7 +26,7 @@ jobs:
         run: brew pr-pull --debug --tap="$GITHUB_REPOSITORY" "$PULL_REQUEST"
 
       - name: Push commits
-        uses: Homebrew/actions/git-try-push@master
+        uses: Homebrew/actions/git-try-push@main
         with:
           token: ${{ github.token }}
           branch: master
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 851b099..979deb2 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,15 +10,15 @@ jobs:
   test-bot:
     strategy:
       matrix:
-        os: [ubuntu-22.04, macos-14]
+        os: [ubuntu-24.04, macos-15]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Set up Homebrew
         id: set-up-homebrew
-        uses: Homebrew/actions/setup-homebrew@master
+        uses: Homebrew/actions/setup-homebrew@main
 
       - name: Cache Homebrew Bundler RubyGems
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ steps.set-up-homebrew.outputs.gems-path }}
           key: ${{ runner.os }}-rubygems-${{ steps.set-up-homebrew.outputs.gems-hash }}
@@ -35,7 +35,7 @@ jobs:
 
       - name: Upload bottles as artifact
         if: always() && github.event_name == 'pull_request'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: bottles_${{ matrix.os }}
           path: '*.bottle.*'
diff --git a/Formula/casacore.rb b/Formula/casacore.rb
index f5e702d..51df577 100644
--- a/Formula/casacore.rb
+++ b/Formula/casacore.rb
@@ -14,6 +14,7 @@ class Casacore < Formula
   depends_on "gcc" # for gfortran
   depends_on "gsl"
   depends_on "hdf5"
+  depends_on "libdeflate"
   depends_on "ncurses"
   depends_on "openblas"
   depends_on "readline"